Project Details

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Results Chart for Delivery Method and Financing

Delivery Method

DBOM Partially Public Finance
# of Projects: 1
100% of the Results

Background informationProject Created: November 6, 2010

Project Name: Atotonilco Wastewater Treatment Project
Year in Operation:
Sector: Water & Waste
Subsector: Wastewater
Status: Design / Construction
Type: New Facility
Description: The new plant will be able to treat 3.6 million tons of water per day. It will also have a cogeneration system to convert the biogas (methane) produced during the treatment to maximize efficiency. The project itself is part of the Mexico Valley’s Sustainable Water Program to combat health and environmental pollution concerns stemming from the use of untreated water to irrigate the alfalfa fields in the region, one of the principal sources of agriculture in Mexico. The plant will be the largest in Mexico, and one of the largest of its kind in the world.
Delivery Method as described in the country where it's located: Build Operate Transfer
Is the project still active: Yes

Project Locations

City: Atotonilco, Hildalgo
Country: Mexico, United Mexican States

Souces of Project Support (Non-monetary)

Checkbox Checked Access to Land: The selected consortium will operate, conserve, and maintain the water treatment plant for 22 years through a lease agreement. After the 22-year lease, the project will be turned over to the local govt.
Checkbox Checked Revenue Stream (Cash Flow) Protected Through Long Term Commitment(s) of Public Sponsor(s): The selected consortium’s proposal included a treatment tariff of $0.13/m3 which includes a variable $0.05/m3 cost component assuming the facility will operate at full capacity. The tariff has balances built into to take into account inflation over the 22-year operations and maintenance term.
Checkbox Checked Environmental Clearance: The project also involves the construction of a cogeneration system to convert methane gas produced from the treatment process into heat and electricity to maximize energy efficiency. This will help reduce greenhouse gas emissions by approximately 1 million tons of carbon dioxide per year.

Souces of Project Support (Monetary)

Checkbox Checked

From Public (Government) Sources to Producers: The project is partially funded (46%) by Mexico's national development fund (FONADIN)

Arrow Right
Checkbox Checked

Credit Enhancements: It is also partially funded (2.34%) through local and regional commercial bank credit

Checkbox Checked

From Private Capital Markets Directly to Producers as Debt: The private consortium selected to deliver the project will provided the remainder (51.66%) of the financing

Project Delivery & Finance Method

Project Delivery:
All Public Finance. Public Sponsor contracts for initial design, and separately contracts for initial construction. Public Owner operates and maintains the resulting facility.
Is there an independant checking engineer? Yes
Project Finance Method: All or Partially By Public Sponsor

Procurement Approach

Project Component
Based Selection
Request for
Request for
for Bids

Term for Key Components & Forms of Contract

Project Component
Combined Term: Initial Design, Construction, O&M Period

Project Value (If and As Known)

Date of Estimated Project Value: November 7, 2010
Project Value
Hard Cost
Hard & Soft Costs
$500 Million - 2 Billion US


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